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' To all whom 'it may concern.;

'ot' the frame has its own sash, or pair of`sashes, the

sterol (Dllllwg Letters Patent N 106,558, modale/ust 23,1870.

l HM

'VENTILATIN G-WIN DOW FOR RAILROA-CARS.

Thecnedule referred to :in these Letters Patent and'makmghpan oy me sameBe it known that .'l, SAMUEL DARLING, of the cityof Providence and Stateof Rhode Island, haveinvented an Improved Window for Railway0ars andsirnilarvehicles; and I do hereby declare that the fol-` lowing,takeu'iu connection with the drawing which accompanies and forms partGt' this specification, is a. description ot' my invention sui'icient toenable* those skilled in the art to practiceit.

.lhe object-ot' my invention is the ready ventilation .of a railway-carwhile iu motion, witllont liability of admitting dust or.cinders.

represents the side of a car,'and

Il, a window applied thereto, in accordance with my invention', snclr awindow being intended for each seatiu the ordinary traveling cars as nowmade.

Instead of inserting the sash which is iri line with the sides of thecar, I nse,'for each window, a double fratrie, having sashes placed atan obtuse angle. to each-other, outside the car, as seen atU. rEachhalt` lower' one of which is made to slide up and down, 'and to he keptopen, when desired, in the same mau` ner as ordinary sashes.

In the dr'awiugv l) and E indicate the sashe's of one-half the window,and F G those ot' the other half. The upper' sashcs, D F, may he made,to slide upward, by inalcing the frame higher, or they may he adaptedfor sliding downward in their frame, orthey may be dispensed withaltogether. In the latter' case, the lower Vsaslresmay he madeproportionately higher. Y

By reason of the outward inclination given to the sas'hcs, the traveler'hasvery perfect control of veutilatiou and avoidance of dust, while, atthe same time, he can do this without annoyirhy the passengersinnnediately behind hinrwitlr cu its of air and rection of thearrow, andit be desirable toopen fr.` window, the passenger opens'aJ sash orsashes, F G,

. rier. The direction thus given to these currents continues as itpasses the spa'eo left open by thc raising ofthe rear sash, and has noopportunity to be turned inward toward thc car, but, on the contrary,keeps its inclined roule, and draws along with it out ot' the openportion ofthe window, theoloseorwarln a-irfrour withinthecnr,thus,atthesainetiure,pnrilying tlreatmosphcre in a positivemanner without snbjecoug travelers to streams ot' cold or damp airdirectly upon the person., When the train is moving' iu the oppositedirection, the order is reversed, the vclosed 'sash being opened, andthe open one closed, the action being:r then precisely the satire asabove described.

It desired, a single sash, ot' a height equal, (or tl|ereab0nt,) to thatot` the upperand lower' sash, may Le employed for cach hall' ot' thewindow, with corresponding.;r frames or guides, to permit their rise andlfull, as above. 'lhis would double the amount ot' ventilation.

My improvement is equally adapted to street-cars, and has the greatadvantage ot'srnpliety, being:r operated the saine as an ordinarywindow, and it is inexpensive,aud easily understood bynll.

I claim- A car-window, composed of sushes placed at an angle with the.outside ot the car, and atan angle with each other, those ot' each partbeing,r arranged to be run up or d owu iudependently ot' those ol' vtheother' part, substantially as shown and described.

` SAMUEL DARLING.

dust; and tbe mode of constructior, also allows him 'to view the countryin advance ot he train, wrt-hout putt-ing his head out ot' a. window; tSupposiug the train-of cars tol/he moving n1 the clll f \Vitucsses:l

Jarras O. GoLLrs's, J osnrn W. Convoos.

and leaves closed the saslres D E. The currents gcnj erated by theswiftanoving train strike upon the out-

